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Konrad II of Czersk (pl: Konrad II czerski; c. 1250 – 24 June/21 October 1294), was a Polish prince member of the House of Piast, Duke of Masovia during 1264-1275 jointly with his brother, after 1275 sole ruler over Czersk and Duke of Sandomierz during 1289.
Among the Piast Dukes of Masovia, Bolesław's IV nephew Konrad I was Polish high duke from 1229 to 1232 and again from 1241 to 1243; he was the ruler who in 1226 called the Teutonic Order for help against the pagan Old Prussians threatening the northern borders of his territory.
- Life
- Marriage and Children
- Konrad's Legacy
- Sources
- External Links
Konrad was the youngest son of High Duke Casimir II the Just of Poland and Helen of Znojmo, daughter of the Přemyslid duke Conrad II of Znojmo (ruler of the Znojmo Appanage in southern Moravia, part of Duchy of Bohemia). His maternal grandmother was Maria of Serbia, apparently a daughter of the pre-Nemanjić župan Uroš I of Rascia. After his father'...
Around 1208/1209 Konrad married Agafia of Rus, daughter of Prince Svyatoslav III Igorevich. They had ten children: 1. Bolesław I(c. 1210 – 17 April 1248), Duke of Masovia 2. Casimir I (c. 1210/13 – 14 December 1267), Duke of Kuyavia 3. Siemowit I (c. 1215 – 24 June 1262),succeeded eldest brother as Duke of Masovia. 4. Eudoxia (b. c. 1215–1225), mar...
Konrad is considered by Poles to be responsible for Teutonic Knights' control of most of the Baltic coastline, undermining Polish authority in the area. King Casimir III of Poland had to accept the rule of the Order in Thorn and Kulm by the 1343 Treaty of Kalisz. After the Thirteen Years' War in the 1466 Second Peace of Thorn, the Polish King Casim...
Bojtar, Endre (1999). Foreword to the Past: A Cultural History of the Baltic People. Central University Press.Boockmann, Hartmut (1992). Deutsche Geschichte im Osten Europas. Ostpreußen und Westpreußen(in German). Berlin.Bruce-Boswell, Alexander (1957). "Poland, 1050-1303". In Tanner, J.R.; Previte-Orton, C.W.; Brooke, Z.N. (eds.). The Cambridge Medieval History: Victory of the Papacy. Vol. 6. Cambridge at the Univ...Corwin, Edward Henry Lewinski (1917). The Political History of Poland. The Polish Book Importing Company.Catholic Encyclopedia Innocent III resolved (1207) to organize a new crusade...Instead of concentrating the forces of Christendom against the Mohammedans, the pope himself disbanded them by proclai...Conrado I de Mazovia (1187 o 1188-31 de agosto de 1247), de la dinastía Piast, fue duque de la provincia de Mazovia y gran duque de toda Polonia (1229-1232). Vida. Conrado fue el hijo menor del Gran Duque Casimiro II el Justo y de Helena de Znojmo, hija del duque přemyslida Conrado II de Znojmo.
26 de jul. de 2023 · Konrad I of Masovia (Polish: Konrad I Mazowiecki; 1187? – 1247), son of Casimir II and Helen of Moravia, was the 6th Duke of Masovia. After his father's death in 1194, Konrad was brought up by his mother. In 1199 he received Masovia and in 1202, Kuyavia.
- Kraków, Małopolskie
- 1187
- "Kunigaikštis Konradas I Mazovietis"
- Kraków, Małopolskie, Poland
King Ottokar II of Bohemia came on crusade and helped them to establish Konigsberg (modern day Kaliningrad) whilst the Natangians were brutally suppressed. This expansion came to a sudden halt when the Lithuanians under their king Mindaugas decided to hit back against the constant intrusions.
Konrad / Conrad II: First duke of Czersk. Died childless. 1294 - 1310: With the death of the heirless Konrad, Czersk is probably merged into other Mazovian territories although Mazovia as a whole is now dominated by Bolesław II of Płock. In 1310 it becomes a territory which is united with the duchy of Warsaw. 1310 - 1341: Trojden I
